You might want to get a sample from the bolt. The undertones (and other colors) can change with the dye lot. I was looking at a cream background on a sample that went pink/taupe when the bolt came in. It was not a high end fabric though. Maybe those are more reliable, part of the production cost.

Hi Carla, At one time they used an all cotton lining, now it is up to your discretion, nothing wrong with the blends. Usually if fabric has a very white color or background they use white, if color or off white they use ivory, natural, off white. JoAnn's and many other places usually have the linings on sale often. Make sure that your silk and whatever your lining choice it is steamed or pressed well before sewing, they allows for some shinkage. Have never tried the sheets, may work others might have more input. After going through all the work you do not want one fabric to shrink when drycleaned and the other does not. Hope this helps a little. Patti

Hi yes I was going to keep the lining that they came with as the lining is sewed all the way around. Also the valance scoups ddown in a few places. If I used that fabric from the link and the stich whichery, would it cfhange the way the valance bunchesz up together right now. I just didn't want something to think that it changed the way the valance hung. Here is a photo of the valance, you can't really see the design, but overall do you think it looks okay for this window. I wasn't sure about how the swags in it per say looked. I got them from amazzon and the drape glass rod from walmart

I would worry that the blackout lining wouldn't flow quite the same as the casement fabric when opened or closed. And the weight of the lining might pull down and stress the casement fabric at the top where they would be attached. Have you considered using shades for light blocking? You might want to cross post this on the sewing forum. Here is a link that might be useful: Sewing forum